Re: COMMIT NOWAIT Performance Option

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От Jeff Davis
Тема Re: COMMIT NOWAIT Performance Option
Дата
Msg-id 1172544275.10824.334.camel@dogma.v10.wvs
обсуждение исходный текст
Ответ на COMMIT NOWAIT Performance Option  ("Simon Riggs" <simon@2ndquadrant.com>)
Ответы Re: COMMIT NOWAIT Performance Option  (Alvaro Herrera <alvherre@commandprompt.com>)
Список pgsql-hackers
On Mon, 2007-02-26 at 22:56 +0000, Simon Riggs wrote:
> Proposal: Implement a new option for COMMIT, for enhancing performance,
> providing a MySQL-like trade-off between performance and robustness for
> *only* those that want it.
> 
>         COMMIT NOWAIT
> 
> This form of COMMIT will *not* perform XLogFlush(), but will rely on a
> special background process to perform regular WAL fsyncs (see later).
> 

I would think that the type of people who would want this feature would
want it to be a property of the connection, not per-statement. For one
thing, many applications use solitary SQL statements without surrounding
them in BEGIN/COMMIT.

Regards,Jeff Davis



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